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Radiation safety The goal of our operations is a radiation-safe Finland. Radiation safety is created as a result of the work of people who know their responsibilities. We work in good cooperation with other authorities, organizations and the entir...https://stuk.fi/en/radiation-safety
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Nuclear safety STUK supervises nuclear safety in Finland. The license holder is responsible for the safety of nuclear energy use, but STUK sets the safety requirements and oversees their compliance. STUK's supervision includes nuclear facilities, ...https://stuk.fi/en/nuclear-safety
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Food control The Radiation and Nuclear Safety Authority (STUK) monitors the radioactivity of food in order to ensure that radiation levels in products are acceptable for human use. Furthermore, the results provide information that is useful for re...https://stuk.fi/en/food-control
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Contacting our experts For contacting our experts and giving feedback on our activities, we kindly request you to use the form below. For example, you can send us a question about radiation in the environment, radiation protection licenses and use...https://stuk.fi/en/send-message
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Advisory Committees The operation and development of STUK is supported by four advisory committees consisting of external members: STUK Advisory Committee Established in spring 2008, this advisory committee is summoned by STUK’s Director General. ...https://stuk.fi/en/advisory-committees
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Regulatory guide on preparedness (VAL) The VAL 1 guide concerns the protective actions in the early and intermediate phases of a nuclear or radiological emergency. Protective actions are measures aimed to minimise the radiation exposure of the pub...https://stuk.fi/en/val-guides
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About Radon Radon is an odourless and invisible radioactive gas that can occur in indoor air. Measurement is the only way to find out the radon concentration. This section contains important information about radon. Radon in Finland Indoor air rad...https://stuk.fi/en/about-radon
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Open data The content of this page is available in Finnish. Contact us: [email protected] Hiddenhttps://stuk.fi/en/open-data
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MetroPOEM project Metrology for the harmonisation of measurements of environmental pollutants in Europe Measurements of environmental pollutants are developed and harmonised in a new three-year project, funded by The European Partnership on Metrol...https://stuk.fi/en/metropoem-project
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Use of radiation in medicine Since the use of radiation may cause harm in addition to benefits, physicians must consider the necessity of radiological examinations, interventional procedures or radiotherapy on a case-by-case basis. These considera...https://stuk.fi/en/use-of-radiation-in-medicine
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Measurement of radioactivity in samples Determinations of the radioactivity of the samples are offered e.g. for tritium, strontium, plutonium and americium, uranium, lead and polonium, as well as radon and long-lived alpha-active substances. In ad...https://stuk.fi/en/measurement-for-radioactivity-in-samples
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Radiation and Nuclear Safety Authority in 2022 Valitse kieli Suomi Välj språket Svenska Select language English Director General’s review The new office building in Vantaa meets STUK's special requirements Intensive year of supervision in Olkiluot...https://stuk.fi/en/year-2022-in-stuk
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Valitse kieli Suomi Välj språket Svenska Select language English Cooperation with Ukraine strengthened Russia's war of aggression in Ukraine which began in 2022 has changed the country’s radiation and nuclear safety situation. In 2023, the Nordic ...https://stuk.fi/en/cooperation-with-ukraine-strengthened
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Reporting on nuclear safety Valitse kieli Suomi Välj språket Svenska Select language English In this section, we report on the regulatory oversight of nuclear safety and security carried out by the Radiation and Nuclear Safety Authority (STUK) and...https://stuk.fi/en/reporting-on-nuclear-safety
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Health effects of radiation Units of measurement: Gray (Gy) Unit of an absorbed dose, indicating how much energy the ionizing radiation gives out to the target substance. 1 Gy = 1 J/kg. Sievert (Sv) A unit of radiation dose indicating the health d...https://stuk.fi/en/health-effects-of-radiation
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Radioactivity in outdoor air STUK monitors the levels of radioactive substances outdoors at eight localities in Finland. You can retrieve measurement data from different periods by first selecting the location. The measurements are very accurate a...https://stuk.fi/en/radioactivity-in-outdoor-air
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Radioactivity in surface water Analyzing radioactive materials in surface waters provides information on their time behaviour. Samples taken from different bodies of water indicate the geographic variation of radionuclides. Starting from 2024, the...https://stuk.fi/en/radioactivity-in-surface-water
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Radioactivity in consumer products The use of radioactive substances in consumer products is restricted by radiation legislation. However, some products may contain small quantities of radioactive substances that may have been added for properties...https://stuk.fi/en/radioactivity-in-consumer-products
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Radon in new buildings Radon prevention in new construction is important in order to ensure low radon concentrations in indoor air. Radon prevention in the construction phase is easier and less expensive than implementing mitigation measures after...https://stuk.fi/en/radon-in-new-buildings
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How to reach us - directions Radiation and Nuclear Safety Authority (STUK) Jokiniemenkuja 1, 01370 Vantaa Opening hours: 8.00-16.15 Main entrance on the Jokiniemenkatu side (Jokiniemenkatu 28) Link to the map: https://maps.app.goo.gl/6WvtBGq5Q6cFL...https://stuk.fi/en/how-to-reach-us